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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






2. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






3. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






4. Birthing process (termination of gestation)






5. (LH) stimulates the Leydig cells to produce testosterone






6. When are steers and heifers weaned from bottle feeding?






7. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)






8. Contains and regulates the temp of the testes for sperm production






9. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.






10. Male on one pin and female on other side






11. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells






12. Why does estrus happen before ovulation?






13. Actual heat cycle (period)






14. 114 days






15. (switzerland) 2nd in size and milk production - most muscle -






16. Depository for semen during insemination. where urine leaves the body






17. What about the sperm for a bull which has been castrated but still has testicles?






18. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






19. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers






20. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat






21. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






22. 19-23 (21) days






23. Front feet and head first. (except for hogs and dogs)






24. 283 days






25. Way to know everything is alright with the breeding male






26. Allows extension of penis without fibro-elastic penis






27. The more stressed out the male is - the less sperm he is going to produce






28. Duct through penis that carries sperm and urine






29. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






30. Failure to have one testis (gonad) to descend






31. 30 hours after estrus begins






32. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






33. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)






34. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.






35. Animal which has been castrated after puberty






36. Can survive ~7 days in cow. vast majority <48 hours






37. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co






38. 19-23 (21) days






39. Scar tissue plugs up chambers of udder






40. 1-2 days






41. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






42. Microscopic - make sure not sterile - very few bulls are actually tested






43. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






44. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






45. 336 days






46. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co






47. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract






48. Way to know everything is alright with the breeding male






49. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






50. Contains and regulates the temp of the testes for sperm production